Abstract：Objective To estimate the risk factors of lumbar disc herniation，and to provide scientific evidence for prevention from lumbar disc herniation，and to guide the prevention and nursing of lumbar disc herniation.Methods Patients of lumbar disc herniation randomly from January 2015 to June 2016 hospitalized in our department were selected，there were 200 cases in case group，and 200 cases in control group，totally 400 cases as the research object.With the method of questionnaire research，including family history，body mass index，professional type，single posture daily load duration，lumbar spine.Results The results of univariate analysis showed that family history of lumbar disc herniation cased out 39.5%，while control group was 6.0%，comparing the two groups，the difference was statistically significant（P＜0.01）.There were 72%cases in cases group whose BMI≥24 kg/m2，while there were 48%in control group，comparing the two groups，the difference was statistically significant（P＜0.05）.Cases patients with mental labour，light manual labor，proportion of manual labor，hard physical labor were 28.5%，15.5%，15.0%，41.0%，while the proportion of control group were 30.0%，25.5%，23.5%，21.0%，comparing the two groups，the difference was statistically significant（P＜0.01）.Cases of patients with single posture daily duration more than 4 hours was 56.5%，while the control group is 36.0%，comparing the two groups，the difference was statistically significant（P＜0.05）.Cases lumbar more than 35 kg，the cases group was 36.0%，while the control group was 16.5%，comparing the two groups，the difference was statistically significant （P＜0.01）.Conclusion Family history，body mass index in patients with lumbar disc herniation patients were higher than in the lumbar intervertebral disc protrusion，professional type，single posture daily duration，lumbar load will increase the risk of lumbar intervertebral disc herniation.Specification，family history，obesity，professional type，single posture daily load duration，lumbar spine are the risk factors of lumbar disc herniation.
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